Combined concentrating and amalgamating machine.



W. L. MCLEAN.

APPLICATION FILED JAN. 5. I915.

Patented Jan. 18, 1916.

2 SHEETS-SHEET I.

IN V ENTO R THE COLUMBIA PLAHOGRAPH 60-. WASHINGTON. D. c.

COMBINED CONCENTRATING AND AIYIALGAMATING MACHINE.

W. L. McLEAN.

COMBINED CONCENTRATING AND AMALGAMATING MACHINE.

APPLICATION FILED JAN-5 ,1915.

Patented Jan. 18, 1916.

'2 SHEETS-SHEET 2- 1 N V EN TO R War/ 622K, Z/rizeazz XVITNESSES flag License.

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WARREN L. MOLEAN,OF SAN FRANCISCO, GALIFURNIA, ASSIGNOR OF ONE-HALF TO JOHN A. VAN BEAL, OF SAN FRANCISCO, CALIFORNIA;

COMBINED CONCENTRATING .AND AMALGAMATING IEACHINE.

To all whom it may concern:

Be it known that I, WARREN L. MOLEAN, a citizen of the United States, residing in the city and county of San Francisco and State of California, haveinvented new and useful Improvements in Gombined Concentrating and Amalgamating Machines, of whichthe following is a specification. v s

This invention'relates to a combined concentrating and amalgamating machine;

lt is one of the objects of the present invention to produce a concentrator for'ha-ndling gold-bearingsand, and particularly to separate the coarser gold by concentration and the fineor flour gold by amalgamation. j j

Another object is to produce an apparatus in the nature of a knock-down structure that may be readily taken apart for shipment and put together again by a person of ordinary ability; furthermore, to produce an apparatus that is simple in construction, effi having reference to the accompanying "drawing, in which t Figure l is a central longltud nalsection through the machine. Fig. 2- is a detail view of the baffle plate adjusting mechanism. Fig. 3 is an end View, partly insection. Fig. l is a cross section on line l l, Fig. 1.

More particularly described, A indicates a suitable frame. Suitably supported by said frame upon spring arms 2'isal1orizontally positioned frame 3, and mounted on said frame and angularly adjustable thereon by means of a screw a and pivot 5 is a concentrating table (3, the upper face of which is covered with burlap, canvas, orany other similar material 7, said covering 7 being secured thereon by a series of riflle strips 8 positioned crosswiseof the table Vibrating or shaking movement is transmitted to the table laterally, with relation to the flow of the material treated, by any suitable means, or, as here shown, by an eccentric 8 and a link 9 connected with frame 3, as at 10. Water is preferably delivered to the head end of the table by a centrifugal pump 11 through a stand pipe 12 and a hen- Specificatienof Letters Patent.

lfiatentedtllano 18,1916,

Application filed January 5,1915. Serial No. 605.

zontally positioned, perforated launder 13. The pump may be driven from any suitable source of power and eccentric 8 may be dr1ven by or mounted on the pump shaft, as

shown.

Suitablysecured in frame A, just below thedischarge'end of the concentrating table, is a box-like frame l i" within which is mounted a plurality of superposed amalgamating plates 15. These plates are carried by brachfets ld'and are set on a suitable inc'l1ne,be1ng ad ustable w1th relation to each other in a longitudinal direction. The bottom of frame 1% 1s also provided with a series of amalgamating plates 17 offset with relation to each other, as indicated at 18,

and the frame is further provided with an amalgam trap 19 through which the discharge of all the plates passes before emptying into a trap or well 20 extending along one side of the main frame. The well is divided into two compartments 21 and 22 by a partition plate 23. The solid material, such as sand, settles in compartment 21 while the water overflowsinto the second com partment 22 where it is taken up by a pipe. 2% connected with the suction side of the The water may in this manner-be returned to the headof the concentrating. tableand can,'j 3ractically speaking,be 'repump.

used indefinitely.

ls lounted above frame 14 is a grizzly'25, and adjustably mounted within the frame, just in front of; the discharge ends of plates 1.7,is a ballie plate 26, the function of which will laterbedescribed. i

The machine constructed as here shown is particularly adapted to handle gold-bearconveyed to the tailing heap, while the water and sand will pass through into frame 1a where it is caught by the several amalgamating plates 15 and 17. The material will here flow over the plates and will finally pass through the amalgam trap and discharge into the well, the sand settling in the first compartment while the Water overthe material handled. The amalgam trap is only provided for the purpose of catching any amalgam that may be scoured off or 7, otherwise lost from the plates.

The baffle plate 26 may be adjusted to any suitable angle, with relation to the discharge ends of plates 15, by means of the clamp screw 80. The baflie plate leads the dischargingmaterial and water from the upper plates back onto the lower plates 17, thereby giving any escaping gold a further chance to be caught. The battle plate also reduces the height or drop of material from the upper plates, thereby preventing too much agitation on the lower plates or in the amalgam trap.

The mounting of the upper superposed plates on brackets, as shown, permits these to beadjusted longitudinally with relation to each other; The plates may in this manner be adjusted to a position where each plate will receive and handle an equal amount of material.

V The machine as a whole is simple and substantial in construction and can easily be knocked down for shipment or assembled at any place by a person of ordinary ability.

The materials and finish of the several parts of the machine are such as the experience and judgment of the manufacturer may dictate.

I wish it understood that various changes inform, proportions and minor details of construction may be resorted towithin the I claim and desire to secure by Letters Patent 1. In a machine of the character described, a plurality of inclined superposed amalga mating plates, means for adjusting said plates longitudinally with relation to eachother, a baflie plate adjacent the discharge ends of the plates swingable toward and away from the latter, and means to hold the bafile plate rigidly in any selected position thereof.

2. In a machine of the character described, a plurality of inclined superposed amalgamating plates, means for adjusting said plates longitudinally with relation to each other, and a baflle plate adjustably mounted amalgamating plates. 7

with relation to the discharge ends of the 1 3. In a machine of the character described,

"a plurality of inclined superposed amalgamating plates, means for ad usting Stud plates longitudinally with relation to each other, a plurality of stationary amalgamating plates offset with relation to each other mounted below the first named plates, and a baffle plate adjustably-mounted with relation to the discharge ends of the amalgamating plates. v

. 4. In combination with a plurality of inclined superimposed amalgamating plates, bafiie means disposed adjacent the discharge ends of said plates, and being common to all of the latter, and means to allow said baffle means to be set at varying angular positions with respect to said plates. 7'

5. In a machine of the type set forth, a lower inclined amalgamating plate, a series of upper longitudinally adjustable superposed amalgamating plates arranged above the lower plate and having their ends spaced from the respective ends of the lower plate, an inlet above the upper plates extending the length of the lower plate and baffle means arranged in front of the upper plates and above the lower plate and disposed between the front ends of the upper plates and the front end of the lower plate.

6. In combination with a series of inclined superposed amalgamating plates, bafiie means adjacent the discharge ends of said plates, said bafiiemeans being common to andextending across the discharge ends of all of the plates and in angular relation to the latter, and means whereby to enable the angular relation between the plates and baflie means to be varied.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

WARREN L. MoLEAN.

. Witnesses:

W. W. HEALEY," M. E. EWING.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

